/*
* utility, may need to be exported, to parse the buffer into a given slice
* structure.
*/
static int
slice_parse(struct ccns_slice *s, const unsigned char *p, size_t size) {
int res = 0;
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, p, size);
uintmax_t version;
int op;
int start;
struct ccn_charbuf *clause = NULL;
if (!ccn_buf_match_dtag(d, CCN_DTAG_SyncConfigSlice))
return (-1);
ccn_buf_advance(d);
if (!ccn_buf_match_dtag(d, CCN_DTAG_SyncVersion))
return (-1);
ccn_buf_advance(d);
ccn_parse_uintmax(d, &version);
ccn_buf_check_close(d);
if (version != SLICE_VERSION)
return (-1);
start = d->decoder.token_index;
if (ccn_parse_Name(d, NULL) < 0)
return(-1);
ccn_charbuf_reset(s->topo);
res = ccn_charbuf_append(s->topo, p + start, d->decoder.token_index - start);
if (res < 0)
return(-1);
start = d->decoder.token_index;
if (ccn_parse_Name(d, NULL) < 0)
return(-1);
ccn_charbuf_reset(s->prefix);
res = ccn_charbuf_append(s->prefix, p + start, d->decoder.token_index - start);
if (res < 0)
return(-1);
if (!ccn_buf_match_dtag(d, CCN_DTAG_SyncConfigSliceList))
return(-1);
ccn_buf_advance(d);
clause = ccn_charbuf_create();
if (clause == NULL)
return(-1);
while (ccn_buf_match_dtag(d, CCN_DTAG_SyncConfigSliceOp)) {
ccn_buf_advance(d);
op = ccn_parse_nonNegativeInteger(d); // op is a small integer
ccn_buf_check_close(d);
if (op != 0)
break;
ccn_charbuf_reset(clause);
start = d->decoder.token_index;
if (ccn_parse_Name(d, NULL) < 0)
break;
res = ccn_charbuf_append(clause, p + start, d->decoder.token_index - start);
ccns_slice_add_clause(s, clause);
}
ccn_charbuf_destroy(&clause);
ccn_buf_check_close(d); /* </SyncConfigSliceList> */
ccn_buf_check_close(d); /* </SyncConfigSlice> */
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state))
return(-1);
return(0);
}
int
ccn_parse_ContentObject(const unsigned char *msg, size_t size,
struct ccn_parsed_ContentObject *x,
struct ccn_indexbuf *components)
{
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, msg, size);
int res;
x->magic = 20090415;
x->digest_bytes = 0;
if (ccn_buf_match_dtag(d, CCN_DTAG_ContentObject)) {
ccn_buf_advance(d);
res = ccn_parse_Signature(d, x);
x->offset[CCN_PCO_B_Name] = d->decoder.token_index;
x->offset[CCN_PCO_B_Component0] = d->decoder.index;
res = ccn_parse_Name(d, components);
if (res < 0)
d->decoder.state = -__LINE__;
x->name_ncomps = res;
x->offset[CCN_PCO_E_ComponentLast] = d->decoder.token_index - 1;
x->offset[CCN_PCO_E_Name] = d->decoder.token_index;
ccn_parse_SignedInfo(d, x);
x->offset[CCN_PCO_B_Content] = d->decoder.token_index;
ccn_parse_required_tagged_BLOB(d, CCN_DTAG_Content, 0, -1);
x->offset[CCN_PCO_E_Content] = d->decoder.token_index;
ccn_buf_check_close(d);
x->offset[CCN_PCO_E] = d->decoder.index;
}
else
d->decoder.state = -__LINE__;
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state))
return (CCN_DSTATE_ERR_CODING);
return(0);
}
int
gen_test(struct ccn_charbuf **name, struct ccn_indexbuf **comps)
{
int res;
intmax_t secs = 1234567890;
int nsecs = 6000000;
*name = ccn_charbuf_create();
ccn_name_init(*name);
res = ccn_create_version(NULL, *name, 0, secs, nsecs);
if (res < 0) {
printf("Unable to create version\n");
return(-__LINE__);
}
*comps = ccn_indexbuf_create();
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = &decoder;
ccn_buf_decoder_start(d, (*name)->buf, (*name)->length);
res = ccn_parse_Name(d, *comps);
if (res < 0) {
printf("Unable to parse name\n");
return(-__LINE__);
}
return(0);
}
int ccn_dhcp_content_parse(const unsigned char *p, size_t size, struct ccn_dhcp_entry *tail)
{
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, p, size);
int i;
int count;
struct ccn_dhcp_entry *de = tail;
if (ccn_buf_match_dtag(d, CCN_DTAG_Entry)) {
ccn_buf_advance(d);
count = ccn_parse_optional_tagged_nonNegativeInteger(d, CCN_DTAG_Count);
for (i = 0; i < count; i ++) {
struct ccn_charbuf *store = ccn_charbuf_create();
size_t start;
size_t end;
int host_off = -1;
int port_off = -1;
de->next = calloc(1, sizeof(*de));
de = de->next;
memset(de, 0, sizeof(*de));
de->store = store;
de->next = NULL;
if (ccn_buf_match_dtag(d, CCN_DTAG_Name)) {
de->name_prefix = ccn_charbuf_create();
start = d->decoder.token_index;
ccn_parse_Name(d, NULL);
end = d->decoder.token_index;
ccn_charbuf_append(de->name_prefix, p + start, end - start);
}
else
de->name_prefix = NULL;
host_off = ccn_parse_tagged_string(d, CCN_DTAG_Host, store);
port_off = ccn_parse_tagged_string(d, CCN_DTAG_Port, store);
char *b = (char *)store->buf;
char *h = b + host_off;
char *p = b + port_off;
if (host_off >= 0)
memcpy((void *)de->address, h, strlen(h));
if (port_off >= 0)
memcpy((void *)de->port, p, strlen(p));
}
}
else
d->decoder.state = -__LINE__;
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state))
ccn_dhcp_content_destroy(tail->next);
return count;
}
struct ccn_proxy *
ccn_proxy_init(const char *filter_uri,
const char *prefix_uri)
{
struct ccn_proxy *proxy = calloc(1, sizeof(struct ccn_proxy));
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = &decoder;
int res;
DEBUG_PRINT("IN %d %s\n", __LINE__, __func__);
/* Convert URI to name this proxy is responsible for */
proxy->prefix = ccn_charbuf_create();
res = ccn_name_from_uri(proxy->prefix, prefix_uri);
if (res < 0) {
DEBUG_PRINT("ABORT %d %s bad ccn URI: %s\n", __LINE__, __func__, prefix_uri);
abort();
}
d = ccn_buf_decoder_start(d, proxy->prefix->buf, proxy->prefix->length);
proxy->prefix_comps = ccn_indexbuf_create();
proxy->prefix_ncomps = ccn_parse_Name(d, proxy->prefix_comps);
proxy->filter = ccn_charbuf_create();
res = ccn_name_from_uri(proxy->filter, filter_uri);
if (res < 0) {
DEBUG_PRINT("ABORT %d %s bad ccn URI: %s\n", __LINE__, __func__, filter_uri);
abort();
}
/* Initialization should be done by ccn_proxy_connect() */
proxy->handle_name = ccn_charbuf_create();
ccn_charbuf_append_string(proxy->handle_name, "in/outb");
DEBUG_PRINT("OUT %d %s\n", __LINE__, __func__);
return(proxy);
}
int
ccn_parse_Link(struct ccn_buf_decoder *d,
struct ccn_parsed_Link *link,
struct ccn_indexbuf *components)
{
int ncomp = 0;
int res;
if (ccn_buf_match_dtag(d, CCN_DTAG_Link)) {
if (components == NULL) {
/* We need to have the component offsets. */
components = ccn_indexbuf_create();
if (components == NULL) return(-1);
res = ccn_parse_Link(d, link, components);
ccn_indexbuf_destroy(&components);
return(res);
}
ccn_buf_advance(d);
link->offset[CCN_PL_B_Name] = d->decoder.element_index;
link->offset[CCN_PL_B_Component0] = d->decoder.index;
ncomp = ccn_parse_Name(d, components);
if (d->decoder.state < 0) {
memset(link->offset, 0, sizeof(link->offset));
return(d->decoder.state);
}
link->offset[CCN_PL_E_ComponentLast] = d->decoder.token_index - 1;
link->offset[CCN_PL_E_Name] = d->decoder.token_index;
link->name_ncomps = ncomp;
/* parse optional Label string */
link->offset[CCN_PL_B_Label] = d->decoder.token_index;
res = ccn_parse_optional_tagged_UDATA(d, CCN_DTAG_Label);
link->offset[CCN_PL_E_Label] = d->decoder.token_index;
/* parse optional LinkAuthenticator LinkAuthenticatorType */
if (ccn_buf_match_dtag(d, CCN_DTAG_LinkAuthenticator))
res = ccn_parse_LinkAuthenticator(d, link);
ccn_buf_check_close(d);
}
else
return (d->decoder.state = -__LINE__);
if (d->decoder.state < 0)
return (d->decoder.state);
return(ncomp);
}
static int
ccn_parse_KeyName(struct ccn_buf_decoder *d, struct parsed_KeyName *x)
{
int res = -1;
if (ccn_buf_match_dtag(d, CCN_DTAG_KeyName)) {
res = d->decoder.element_index;
ccn_buf_advance(d);
x->Name = d->decoder.token_index;
ccn_parse_Name(d, NULL);
x->endName = d->decoder.token_index;
x->PublisherID = ccn_parse_PublisherID(d, NULL);
x->endPublisherID = d->decoder.token_index;
ccn_buf_check_close(d);
}
else
d->decoder.state = -__LINE__;
if (d->decoder.state < 0)
return (d->decoder.state);
return(res);
}
int
ccn_parse_interest(const unsigned char *msg, size_t size,
struct ccn_parsed_interest *interest,
struct ccn_indexbuf *components)
{
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, msg, size);
int magic = 0;
int ncomp = 0;
int res;
if (ccn_buf_match_dtag(d, CCN_DTAG_Interest) || ccn_buf_match_dtag(d, CCN_DTAG_PersistentInterest))
{
if (components == NULL) {
/* We need to have the component offsets. */
components = ccn_indexbuf_create();
if (components == NULL) return(-1);
res = ccn_parse_interest(msg, size, interest, components);
ccn_indexbuf_destroy(&components);
return(res);
}
/*In case of persistent interest*/
if(ccn_buf_match_dtag(d, CCN_DTAG_PersistentInterest))
{
interest->persistent = 1;
}
ccn_buf_advance(d);
interest->offset[CCN_PI_B_Name] = d->decoder.element_index;
interest->offset[CCN_PI_B_Component0] = d->decoder.index;
ncomp = ccn_parse_Name(d, components);
if (d->decoder.state < 0) {
memset(interest->offset, 0, sizeof(interest->offset));
return(d->decoder.state);
}
interest->offset[CCN_PI_E_ComponentLast] = d->decoder.token_index - 1;
interest->offset[CCN_PI_E_Name] = d->decoder.token_index;
interest->prefix_comps = ncomp;
interest->offset[CCN_PI_B_LastPrefixComponent] = components->buf[(ncomp > 0) ? (ncomp - 1) : 0];
interest->offset[CCN_PI_E_LastPrefixComponent] = components->buf[ncomp];
/* optional MinSuffixComponents, MaxSuffixComponents */
interest->min_suffix_comps = 0;
interest->max_suffix_comps = 32767;
interest->offset[CCN_PI_B_MinSuffixComponents] = d->decoder.token_index;
res = ccn_parse_optional_tagged_nonNegativeInteger(d,
CCN_DTAG_MinSuffixComponents);
interest->offset[CCN_PI_E_MinSuffixComponents] = d->decoder.token_index;
if (res >= 0)
interest->min_suffix_comps = res;
interest->offset[CCN_PI_B_MaxSuffixComponents] = d->decoder.token_index;
res = ccn_parse_optional_tagged_nonNegativeInteger(d,
CCN_DTAG_MaxSuffixComponents);
interest->offset[CCN_PI_E_MaxSuffixComponents] = d->decoder.token_index;
if (res >= 0)
interest->max_suffix_comps = res;
if (interest->max_suffix_comps < interest->min_suffix_comps)
return (d->decoder.state = -__LINE__);
/* optional PublisherID */
res = ccn_parse_PublisherID(d, interest);
/* optional Exclude element */
interest->offset[CCN_PI_B_Exclude] = d->decoder.token_index;
res = ccn_parse_Exclude(d);
interest->offset[CCN_PI_E_Exclude] = d->decoder.token_index;
/* optional ChildSelector */
interest->offset[CCN_PI_B_ChildSelector] = d->decoder.token_index;
res = ccn_parse_optional_tagged_nonNegativeInteger(d,
CCN_DTAG_ChildSelector);
if (res < 0)
res = 0;
interest->orderpref = res;
interest->offset[CCN_PI_E_ChildSelector] = d->decoder.token_index;
if (interest->orderpref > 5)
return (d->decoder.state = -__LINE__);
/* optional AnswerOriginKind */
interest->offset[CCN_PI_B_AnswerOriginKind] = d->decoder.token_index;
interest->answerfrom = ccn_parse_optional_tagged_nonNegativeInteger(d,
CCN_DTAG_AnswerOriginKind);
interest->offset[CCN_PI_E_AnswerOriginKind] = d->decoder.token_index;
if (interest->answerfrom == -1)
interest->answerfrom = CCN_AOK_DEFAULT;
else if ((interest->answerfrom & CCN_AOK_NEW) != 0 &&
(interest->answerfrom & CCN_AOK_CS) == 0)
return (d->decoder.state = -__LINE__);
/* optional Scope */
interest->offset[CCN_PI_B_Scope] = d->decoder.token_index;
interest->scope = ccn_parse_optional_tagged_nonNegativeInteger(d,
CCN_DTAG_Scope);
interest->offset[CCN_PI_E_Scope] = d->decoder.token_index;
if (interest->scope > 9)
return (d->decoder.state = -__LINE__);
if ((interest->answerfrom & CCN_AOK_EXPIRE) != 0 &&
interest->scope != 0)
return (d->decoder.state = -__LINE__);
/* optional InterestLifetime */
interest->offset[CCN_PI_B_InterestLifetime] = d->decoder.token_index;
res = ccn_parse_optional_tagged_BLOB(d, CCN_DTAG_InterestLifetime, 1, 8);
if (res >= 0)
magic |= 20100401;
interest->offset[CCN_PI_E_InterestLifetime] = d->decoder.token_index;
/* optional Nonce */
interest->offset[CCN_PI_B_Nonce] = d->decoder.token_index;
res = ccn_parse_optional_tagged_BLOB(d, CCN_DTAG_Nonce, 4, 64);
interest->offset[CCN_PI_E_Nonce] = d->decoder.token_index;
/* Allow for no experimental stuff */
interest->offset[CCN_PI_B_OTHER] = d->decoder.token_index;
interest->offset[CCN_PI_E_OTHER] = d->decoder.token_index;
ccn_buf_check_close(d);
interest->offset[CCN_PI_E] = d->decoder.index;
}
else
return (d->decoder.state = -__LINE__);
if (d->decoder.state < 0)
return (d->decoder.state);
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state))
return (CCN_DSTATE_ERR_CODING);
if (magic == 0)
magic = 20090701;
if (!(magic == 20090701 || magic == 20100401))
return (d->decoder.state = -__LINE__);
interest->magic = magic;
return (ncomp);
}
struct ccn_strategy_selection *
ccn_strategy_selection_parse(const unsigned char *p, size_t size)
{
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, p, size);
struct ccn_strategy_selection *result;
struct ccn_charbuf *store = NULL;
const unsigned char *val = NULL;
size_t sz;
size_t start;
size_t end;
int action_off = -1;
int ccnd_id_off = -1;
int strategyid_off = -1;
int parameters_off = -1;
result = calloc(1, sizeof(*result));
if (result == NULL)
return(NULL);
result->name_prefix = ccn_charbuf_create();
result->store = store = ccn_charbuf_create();
if (result->name_prefix == NULL || result->store == NULL) {
ccn_strategy_selection_destroy(&result);
return(NULL);
}
if (ccn_buf_match_dtag(d, CCN_DTAG_StrategySelection)) {
ccn_buf_advance(d);
action_off = ccn_parse_tagged_string(d, CCN_DTAG_Action, store);
if (ccn_buf_match_dtag(d, CCN_DTAG_Name)) {
start = d->decoder.token_index;
ccn_parse_Name(d, NULL);
end = d->decoder.token_index;
ccn_charbuf_append(result->name_prefix, p + start, end - start);
}
else
ccn_charbuf_destroy(&result->name_prefix);
if (ccn_buf_match_dtag(d, CCN_DTAG_PublisherPublicKeyDigest)) {
ccn_buf_advance(d);
if (ccn_buf_match_blob(d, &val, &sz)) {
ccn_buf_advance(d);
if (sz != 32)
d->decoder.state = -__LINE__;
}
ccn_buf_check_close(d);
if (d->decoder.state >= 0) {
ccnd_id_off = store->length;
ccn_charbuf_append(store, val, sz);
result->ccnd_id_size = sz;
}
}
strategyid_off = ccn_parse_tagged_string(d, CCN_DTAG_StrategyID, store);
parameters_off = ccn_parse_tagged_string(d, CCN_DTAG_StrategyParameters, store);
result->lifetime = ccn_parse_optional_tagged_nonNegativeInteger(d, CCN_DTAG_FreshnessSeconds);
ccn_buf_check_close(d);
}
else
d->decoder.state = -__LINE__;
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state))
ccn_strategy_selection_destroy(&result);
else {
const char *b = (const char *)result->store->buf;
result->action = (action_off == -1) ? NULL : b + action_off;
result->ccnd_id = (ccnd_id_off == -1) ? NULL : result->store->buf + ccnd_id_off;
result->strategyid = (strategyid_off == -1) ? NULL : b + strategyid_off;
result->parameters = (parameters_off == -1) ? NULL : b + parameters_off;
}
return(result);
}
enum ccn_upcall_res
andana_client_encap_interest(
struct ccn_closure *selfp,
enum ccn_upcall_kind kind,
struct ccn_upcall_info *info)
{
int res;
enum ccn_upcall_res upcall_res = CCN_UPCALL_RESULT_ERR;
struct andana_client *client = selfp->data;
struct ccn_proxy *proxy = client->proxy;
size_t orig_name_ncomps;
struct ccn_charbuf *orig_name = NULL;
struct ccn_indexbuf *orig_name_comps = NULL;
struct ccn_charbuf *new_name = NULL;
struct ccn_indexbuf *new_name_comps = NULL;
struct hashtb_enumerator ee;
struct hashtb_enumerator *e = ⅇ
switch (kind) {
case CCN_UPCALL_INTEREST:
DEBUG_PRINT("Received Interest\n");
break;
case CCN_UPCALL_FINAL:
DEBUG_PRINT("Encap: callback final\n");
return(CCN_UPCALL_RESULT_OK);
default:
return(CCN_UPCALL_RESULT_ERR);
}
/* Extract Name from Interest */
orig_name_ncomps = ccn_util_extract_name(info->interest_ccnb,
info->interest_comps,
&orig_name,
&orig_name_comps);
/*
* Need to check this Interest doesn't match what we send out.
* Otherwise, we'll just keep encapsulating the same thing over and over.
*/
int num_matching_comps =
ccn_util_name_match(client->proxy->prefix,
client->proxy->prefix_comps,
orig_name,
orig_name_comps);
if (num_matching_comps == client->proxy->prefix_ncomps) {
DEBUG_PRINT("Interest matches %d of %d components, ignoring interest\n", num_matching_comps, (int)client->proxy->prefix_ncomps);
#ifdef PROXYDEBUG
ccn_util_println_pc_fmt(orig_name->buf, orig_name->length);
DEBUG_PRINT("Name has %lu comps\n", orig_name_comps->n-1);
ccn_util_println_pc_fmt(client->proxy->prefix->buf, client->proxy->prefix->length);
DEBUG_PRINT("Name has %lu comps\n", client->proxy->prefix_comps->n-1);
#endif
goto MatchBail;
} else {
DEBUG_PRINT("Interest matches %d of %d components\n", num_matching_comps, (int)client->proxy->prefix_ncomps);
}
/* Create a new name encapsulated & encrypted name */
// new_name_comps = ccn_indexbuf_create();
ccn_name_append(orig_name, info->interest_ccnb, info->pi->offset[CCN_PI_E]);
ccn_indexbuf_destroy(&orig_name_comps);
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = &decoder;
ccn_buf_decoder_start(d, orig_name->buf, orig_name->length);
orig_name_comps = ccn_indexbuf_create();
res = ccn_parse_Name(d, orig_name_comps);
if (res <= 0) {
DEBUG_PRINT("%d %s error parsing encapsulated name\n",
__LINE__, __func__);
goto MatchBail;
}
res = andana_path_encrypt_encap(client->path,
orig_name,
orig_name_comps,
&new_name,
&new_name_comps);
if (res <= 0) {
DEBUG_PRINT("%d %s error encapsulating and encrypting name\n",
__LINE__, __func__);
goto EncryptBail;
}
/* Remember the new name so we know how to decrypt & decapsulate it later */
hashtb_start(client->name_to_path, e);
res = hashtb_seek(e, new_name->buf, new_name->length, 0);
if (res == HT_NEW_ENTRY) {
} else if (res == HT_OLD_ENTRY) {
DEBUG_PRINT("Interest recording found old entry\n");
upcall_res = CCN_UPCALL_RESULT_OK;
goto LookupBail;
} else {
DEBUG_PRINT("Error in Interest insertion\n");
goto LookupBail;
}
/* Send out new Interest */
#ifdef PROXYDEBUG
struct ccn_charbuf *c = ccn_charbuf_create();
ccn_uri_append(c, new_name->buf, new_name->length, 1);
DEBUG_PRINT("name = %s\n", ccn_charbuf_as_string(c));
ccn_charbuf_destroy(&c);
#endif
res = ccn_express_interest(proxy->handle, new_name, proxy->content_handler, NULL);
if(res != 0) {
DEBUG_PRINT("express interest res = %d\n",res);
} else {
struct andana_path **path_ptr = e->data;
*path_ptr = andana_path_copy(client->path);
upcall_res = CCN_UPCALL_RESULT_INTEREST_CONSUMED;
}
LookupBail:
hashtb_end(e);
EncryptBail:
ccn_charbuf_destroy(&new_name);
ccn_indexbuf_destroy(&new_name_comps);
MatchBail:
ccn_charbuf_destroy(&orig_name);
ccn_indexbuf_destroy(&orig_name_comps);
return(upcall_res);
}
struct ccn_forwarding_entry *
ccn_forwarding_entry_parse(const unsigned char *p, size_t size)
{
struct ccn_buf_decoder decoder;
struct ccn_buf_decoder *d = ccn_buf_decoder_start(&decoder, p, size);
struct ccn_charbuf *store = ccn_charbuf_create();
struct ccn_forwarding_entry *result;
const unsigned char *val;
size_t sz;
size_t start;
size_t end;
int action_off = -1;
int ccnd_id_off = -1;
if (store == NULL)
return(NULL);
result = calloc(1, sizeof(*result));
if (result == NULL) {
ccn_charbuf_destroy(&store);
return(NULL);
}
if (ccn_buf_match_dtag(d, CCN_DTAG_ForwardingEntry)) {
ccn_buf_advance(d);
action_off = ccn_parse_tagged_string(d, CCN_DTAG_Action, store);
if (ccn_buf_match_dtag(d, CCN_DTAG_Name)) {
result->name_prefix = ccn_charbuf_create();
start = d->decoder.token_index;
ccn_parse_Name(d, NULL);
end = d->decoder.token_index;
ccn_charbuf_append(result->name_prefix, p + start, end - start);
}
else
result->name_prefix = NULL;
if (ccn_buf_match_dtag(d, CCN_DTAG_PublisherPublicKeyDigest)) {
ccn_buf_advance(d);
if (ccn_buf_match_blob(d, &val, &sz)) {
ccn_buf_advance(d);
if (sz != 32)
d->decoder.state = -__LINE__;
}
ccn_buf_check_close(d);
if (d->decoder.state >= 0) {
ccnd_id_off = store->length;
ccn_charbuf_append(store, val, sz);
result->ccnd_id_size = sz;
}
}
result->faceid = ccn_parse_optional_tagged_nonNegativeInteger(d, CCN_DTAG_FaceID);
result->flags = ccn_parse_optional_tagged_nonNegativeInteger(d, CCN_DTAG_ForwardingFlags);
result->lifetime = ccn_parse_optional_tagged_nonNegativeInteger(d, CCN_DTAG_FreshnessSeconds);
ccn_buf_check_close(d);
}
else
d->decoder.state = -__LINE__;
if (d->decoder.index != size || !CCN_FINAL_DSTATE(d->decoder.state) ||
store->length > sizeof(result->store))
ccn_forwarding_entry_destroy(&result);
else {
char *b = (char *)result->store;
memcpy(b, store->buf, store->length);
result->action = (action_off == -1) ? NULL : b + action_off;
result->ccnd_id = (ccnd_id_off == -1) ? NULL : result->store + ccnd_id_off;
}
ccn_charbuf_destroy(&store);
return(result);
}